C189是中国农业科学院自广东土壤中分离出的一种放线菌。以其浸出液浸种,对谷子、黍子黑穗病有显著的防治作用,并对玉米、高粱、谷子、黍子、小麦等作物,能刺激生长发育,导致明显增产。C189的土法生产比较简单,一般用三级培养法,用麦麸、麻饼等作原料,有制作“5406”菌肥基础的社队都可进行。使用时,先用24—50倍温水(60℃),将 C189成品 C189 is an actinomycete isolated from the soil of the Chinese Academy of Agricultural Sciences. Seed soaking with its leaching solution, millet and millet smut has a significant role in prevention and control, and corn, sorghum, millet, millet, wheat and other crops, can stimulate growth and development, leading to significant yield. C189 indigenous production is relatively simple, generally three levels of culture, with wheat bran, hemp cake as raw materials, production of “5406” based on clubs can be carried out by clubs. Use, first with 24-50 times warm water (60 ℃), the C189 finished